| Ken Moiarty 2005-11-29, 8:21 am |
| Woke up and couldn't fall back to sleep this morning so I decided to get up
early and try painting again. I was impatient to try the "linseed oil"
idea. But I don't have any linseed oil in the house and nothing's open here
at 3 AM. So on a whim I used some food-grade MTC
(medium-chain-triglyceride) oil I happened to have lying around (from my
days if experimenting with fad body-building food supplements). MTC oil is
a very light oil. But one advantage the MTC oil happens to offer as paint
additive is that it is completely colourless. OTOH linseed oil being yellow,
whilst my paint being white... well you can see where I'm going. Anyway, I
just finished putting up a coat of Varathane, after thinning it with this
MTC oil. And man, what a difference! Although a little on the runny side
for my liking, the problem with the bubbles has now been completely
resolved! By delaying the Varathane setup, and thereby increasing my time
to work with it, I am now able to painstakingly tease out all the bubbles
with my brush before leaving the project to dry. (Also, as a bonus, brush
marks now less prominent. I'll see later if they don't have enough time to
disappear completely on their own before the paint does finally begin to
set.)
Thanks again,
Ken
"Stephen Hull" <Steve@127.0.0.1> wrote in message
news:cfa356d14d.Steve@btinternet.com...
> In message <fKOif.648108$tl2.646851@pd7tw3no>
> "Ken Moiarty" <kmoiarty35@shaw.ca> wrote:
>
>
> [snip]
>
> Most people would automatically add turpentine or white spirit into
> paint in an attempt to retard the drying process when experiencing
> drying problems but these are also classed as driers and although
> they'll ease application it doesn't always decrease drying times.
>
> There's a product called Owatrol that will also retard the drying
> process.
> Unfortunately Polyurethane is proven to set-up too quickly and sometimes
> needs a hand to slow it down.
>
> An alternative method would be to use a recognised slower synthetic
> thinner perhaps 10% and if possible paint on a cooler day.
>
> Steve.
>
>
> --
> http://www.stephen.hull.btinternet.co.uk
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> "Whatever is rightly done, however humble, is noble". Henry Royce
|